A CRYSTALLINE CHROMIUM TUNGSTATE.

Kinetics of a first-order crystalline-amorphous transformation in zirconium tungstate

Xiaozhi Yan,1,2,* Xiangting Ren,2 Guangai Sun,1 Dong Li,3 Xin Li,1,3 Duanwei He,3,† and Wenge Yang2,4 1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People’s Republic of China 2Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai 201203, People’s Republic of China 3Institute of Atomic and Molecular Physics, Sic...

Single-crystalline chromium silicide nanowires and their physical properties

In this work, chromium disilicide nanowires were synthesized by chemical vapor deposition (CVD) processes on Si (100) substrates with hydrous chromium chloride (CrCl3 · 6H2O) as precursors. Processing parameters, including the temperature of Si (100) substrates and precursors, the gas flow rate, the heating time, and the different flow gas of reactions were varied and studied; additionally, the...

Detecting and gettering chromium impurities in photovoltaic crystalline silicon

Photovoltaic (PV) modules provide a source of renewable electricity by harnessing solar energy. Currently, crystalline silicon dominates the PV market with an approximate market share of 90% and record solar cell efficiencies greater than 20%. However, the PV market must decrease the cost to the consumer to maintain growth and meet global electricity demands. Increasing the solar-to-electricity...

Realization of on-chip lasers in crystalline double tungstate waveguides using focused-ion-beam nanostructuring

We report our recent work on obtaining on-chip lasers in crystalline double tungstate waveguides using focused-ion-beam (FIB) nanostructuring. Photonic cavity structures were defined by forming deeply etched Bragg gratings in KGdxLu1-x(WO4)2:Yb 3+ using FIB milling. The FIB milling procedure was optimized and gratings more than 4 μm in depth with an improved total sidewall angle of about 5 wer...

Reassessment of the recombination parameters of chromium in n- and p-type crystalline silicon and chromium-boron pairs in p-type crystalline silicon